Joseph l



(No Model.)

J. L. WELLS.

BRAIDED WIRR TUBULAR SPRING.

No. 339,954. Patented Apr. 13, 1886.

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UNITED STATES 1 PATENT OFFICE.

JOSEPH L. \VELLS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE IVESTON8t IVELLS MANUFACTURING COMPANY, OF CAMDEN, N. J.

BRAIDED-WIRE TUBULAR SPRING.

SPECIFICATION forming part of Letters Patent No. 339,954, dated April13, 1886.

Application filed April 9, 1885.

T aZZ whom it may concern.-

Be it known that I, JosEPH L. IVELLs, a

. citizen of the United States, residing at the city and county ofPhiladelphia, and State of Pennsylvania, have invented certain new anduseful Improvements in Braided-\Vi re Tubular Springs, of which thefollowing is a full, clear,

and exact description, reference being bad to the accompanying drawings.

Figure 1 is a perspective view of my invention. Fig. 2isa plan viewofthe core or former upon which the wires of which the spring isconstructed are braided. Fig. 3 is a side elevation of said core.

I 5 This invention relates to that class of springs for furniture,car-seats, cushions, pillows, mattresses, and other uses which areconstructed of elastic steel or other wire interbraided or interwoven bya suitable machine into tubular form. Examples of such tubularinterbraided springs are described in the specification and shown inFigs. 3, 4, and 16 in Letters Patent No. 225,7 54, granted to NicholasJenkins, March 23, 1880; also in Letters 5 Patent No. 264,007, grantedto Henry \Veston, September 5, 1882.

The invention relates particularly to such springs where the compressionto which they are to be or may be subjected is in a transverse insteadofa longitudinal directionas,

for example, in cushions, pillows, &c.

The improvement consists in braiding or forming the spring in the shapeof an archthat is to say, a tube flattened on one side 3 5 wherebycertain advantages result, as hereinafter explained.

Serial No. 161,752.

(No model.)

Referring to the drawings, Figs. 1 and 2 represent a core or former uponwhich the steel wires are interlaced by a suitable braiding machine. Itwill be observed that this core 0 is circular in cross-section, exceptthat it is flattened on one side at a. This form is of course impartedto thetubular fabric,whichis made continuously,as described in anapplication for Letters Patent executed by methe 17th 5 day of February,1885, for animprovement in wire-braiding machines. The fabricis cutoffinto desired lengthssuch as that shown in Fig. 1, in which 1) marks theinterbraided wires; c,the arched or circular part of the tube, and d theflattened portion.

The advantage of this form over the usual circular or oval springs ofthe class mentioned is that by means of the single arch, inlieu of thedouble arch, a greater resistance is presented to the pressure upon thetop of the spring, and consequently I am enabled to use a much lighterwire than is necessary in the said double-arch springs.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- As a new article of manufacture, a tubular interwovenor braided wire spring flattened 011 one side, substantially as and forthe purpose set forth.

In testimony whereofl have hereunto affixed my signature this 25th dayof February, A. D. 1885.

JOSEPH L. ELLS. \Vitnesses:

JOHN NOLAN, FRANCIS S. BROWN.

